Which is not a recognized discount under the wind mitigation law?

The answer identifies plumbing changes as not being recognized as a discount under the wind mitigation law. This law is designed to provide insurance premium discounts to property owners who take specific measures to enhance the resilience of their homes against wind damage, especially during hurricane events.

Roof covering, roof to wall connections, and opening protections are all critical components that help mitigate wind damage. Roof covering pertains to the type of materials used, which can significantly affect how well a roof can withstand high winds. The roof to wall connection is crucial because it determines how securely the roof structure is attached to the walls of the building, impacting the overall stability during wind events. Opening protections refer to measures such as impact-resistant windows and doors that safeguard openings in the structure from wind and debris, thereby minimizing potential damage.

In contrast, plumbing changes do not directly relate to a property's wind resistance or its ability to withstand windstorm challenges. They focus on the home's water and drainage systems and do not influence how well the structure can endure strong winds. This distinction is what makes plumbing changes not eligible for recognition under the wind mitigation law.